[dpdk-dev] [PATCH] net/i40e: fix out-of-bounds writes during vector Rx
Thomas Monjalon
thomas.monjalon at 6wind.com
Fri Jul 22 01:35:20 CEST 2016
2016-07-21 14:03, Ilya Maximets:
> From: Sergey Dyasly <s.dyasly at samsung.com>
>
> Rx loop inside _recv_raw_pkts_vec() ignores nb_pkts argument and always
> tries to receive RTE_I40E_VPMD_RX_BURST (32) packets. This is a violation
> of rte_eth_rx_burst() API and can lead to memory corruption (out-of-bounds
> writes to struct rte_mbuf **rx_pkts) if nb_pkts is less than 32.
>
> Fix this by actually using nb_pkts inside the loop.
>
> Fixes: 9ed94e5bb04e ("i40e: add vector Rx")
>
> Signed-off-by: Sergey Dyasly <s.dyasly at samsung.com>
> Acked-by: Ilya Maximets <i.maximets at samsung.com>
Applied, thanks
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